Please remember that some people had their adsense accounts terminated back when Google lost the PPC class action lawsuit against them. They went apesh|t and terminated a whole bunch of innocent adsense users who cannot get their accounts back even after 3 or more appeals. These people will take anything, even YPN, so long as they can make money. The only way to safely and sensibly get a new adsense account for these people is to form an LLC or incorporate so that they do not have to use their own name and address and other info. Going through a family member or friend is very non-sensible and stupid when you think about all the tax implications.
MIVA is very unreliable and pays VERY VERY little and the same goes with just about every other adsense-like program out there. I've tried MIVA about a year or so ago and got really sick of getting paid a penny per click for even the high paying keywords. When you are getting paid a penny per click, you have to realize that you are just giving your traffic away for nothing and that's not good.
Then all the other companies require you to submit all the sites you own and want to display ads on for approval first. A real pain in the neck.
From what I hear, YPN is the best alternative to Adsense, even if they aren't that great and that's why I and many others want to get a YPN account. They may not be even half as good as google but they are most likely strides a head of the rest.